Type-writing machines.



E. E. BARNEY.

TYPE WRITING MACHINE.

APPLIGATION FILED JULY 10, 1913.

Patanted Nov. 3, 1914,

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COHSIS s 121 C63.

and 005211 hex'vin rmn' TC'Z' are Tani lnvking partly in 35 is a as kifiv spectiv 40 The ma my im sri' prises side suri: of has and an i1 *0 said unmor are vmmec V Mute 4 Pm] :1 The '10 pieces 11. in a 1;;11'154 by a re'zr {up plate 7, Hm well am-m bars move platen is :1 1. riag whim him The type action and shiftable segment above described, are not of my invention but. are the invention of Arthur V. F niith. My invention resides more especially in the mechanism used for shifting the segment 13 and in this sense my invention is in the natnreof an improvement on the invention of the said Arthur \l'. mith. in another sense my invention niav he said to include an improved means for shifting the shiftable part of an; typewriter where there are three case shift positions, whether said shiftable part consists of a tyllt; liar segment as in the present instance or of a shiftable platen or of some other part of the machine.

In order partially or wholly to counter balance the weight of the shiftahle frame, said frame has mounted thereon and depending therefrom below the pivots 17, an arm 30 to the lower end of which fastened the rear end of a contractile spring 31, the forward end of which is secured by means including a screw 32 (Figs. 4 and 6) to a lug 33 projecting upward from the cross bar 28. The screw 32 is threaded into a nut which in turn is threaded into the coils of the spring 31 so that the tension on said spring can be varied by turning said screw.

My improved shifting means includes two operating devices, preferably toggles, which when in normal position hold the shiftable part, in this case the segment, in one position and when one of said devices is actuated it moves the shiftable part to its second position and when the other of said devices is actuated it moves the shiftablc part to the third position. Preferably both of said operating devices are continuously connected with the shiftable part, and when one of said operating devices is actuated the other of said devices acts as a fulcrum on or against which the actuated device works. and in the present instance this action is brought about by means of a lever connected at diflcrent points to both operating devices in such a way that when one of said devices is actuated the other acts as a fulcrum for said lever. The mech anism is capable of a number of modifications and variations in detail so that the particular instance shown in the drawings is to be taken as illustrative merely and the invention is not confined to that particular form.

in the machine shown in said drawings l have secured to the left-hand side bar 16 of the shiftable frame. a sheet metal arm 34, oii'set as shown in Fig. 4. by a sort of double bend, and at its rear end secured by two sciews 35 to the shifting frame. Near its forward end this arm has threaded therein a pivot screw 36 on which pivoted the hub of the lever 37 above referred to. in the present instance this a lever of the first order and the two arms th r of are of equal length and the two operating devices are connected to saiddever one to each end thereof. One of said operating devices consists of a toggle having a link 38 pivoted at 39 to the forward end of the lever 37, and a link 40 anchored to a fixed point. In the present instance this link 40 is pivoted on a pivot screw 41 threaded liig. 4, projecting inward from the frame bar 3. The two links 38 and 40 are connected together by means of a pivot screw 43 passing through one of said links and threaded into theother and preferably provided with a lock nut. Around said screw there is coiled a spring 44, the two ends of the tension of this spring being exertedto resist breaking of. the toggle toward the rear. The motion of the parts under the impulse of said spring is limited by an car 45 bent off from a prolongation of the link 38 and said ear, when the toggle is straight, resting against the rear edge of the link 40.. ,When this toggle, is straight, it is positively prevented from breaking toward the front and the spring 44 resists any tendency-to l break it toward the rear. The toggle can, however, be broken toward the rear as shown in Fig. (i by means of a, shift key 46 mounted on the forward end of a shift key lever 47 which is pivoted to the base bar 1 on a pivot screw 48. Forward of said ivot screw the lever 47 is connected by a link 50 with a forwardly projecting arm 51 of the toggle link 40, which link fore one arm of a lever. It will be seen that the toggle 38-40 efvtends from the lever 37 upward and toward the front. The other operating device consists of a toggle and comprising a link 5) pi 'oted at 53 to the rear end 'of the lever'ii'l, and at 54 to the upper end of a companion toggle link 53. which link is pivoted at a. convenient point in the base of the n'lachine. instance this link is sl same screw 4-8 as the shift lever 47. The t-' ggle,52-55 is acted on by a spring 5 tending to break it toward the front of th machine and prevented by an ear 57 bent oil' from the prolongation of the. link 52 and engaging the rear edge of the link This second toggle is operated by means of a shift kev shift key lever 47 but is not pivoted on the screw 48. The lever (30 is a lever of the first order pivver 30 that lies by th able lug of the base bar l and at it said key lever is form slot 2 into which a pin lever arm 64 integral with the link 55. construction is such ,depressed, as shown in Fig. 5,

ed with an elongated 3i, projects from a lhe that when the key 58 is into a post 42,-

which are hooked in under the two links,

4.0 is there- 1 0 extending downward and toward the rear In the present lown pivoted on the fid'mounted on the forward end of a key lcs rear end 12:3

the toggle be operated the lug .t0 the l'OSS frame sition and allow the sh position. If the key 46 76 niotes down in front of the ear T7 and prevents operation of the key 58 until the key 46 shall have been restored to normal position.

I have provided a simple shift lock adapted to lock down either one of the keys 38 and 40. To this end each of the key passes through the comb plate 79, an arm depending therefrom with a forwardly projecting lug 80. A locking lever is pivote bar 81, which bar constifor the key levers of the 58 is in depressed tutes the back stop machine and which also supports said comb plate. Said lever has two toes or lugs 82 and 83 projecting therefrom, one toward the left to cooperate with the lug 80 of the key lever 30 and the other projecting toward the right to cooperate with the lug 80 of the key lever 47. In such a construction as that shown it is desirable that these two toes 82 and 83 be independently adjustable and to this end the lever is of a compound or built-up character comprising one strip of sheet metal 84 having the toe 9:2 projecting therefrom and another strip of sheet metal 85 having the toe 83 projecting therefrom, and said strips of sheet metal are. both formed with elongated slots 86 through which extend headed screws 8| which are threaded into a. part 88 consisting in the present instance of a piece of sheet metal bent into U-shape and havin a pivot 90 extending therethrough an through ears projecting forward from a suitable bracket 91 secured to the frame of the machine. A spring 92 coiled around the pivot 90 and pressing back on the frame at one end and at the other end pressing forward on the lever, tends to move the lower end of the lever toward the front of the machine to the position shown in Fig. 1 where it is arrested by the upper part of the block 88 pressing against the forward fare of the bracket 91. One of the plates tit--35 is prolonged upward and has a key as bent oll' therefrom toward the front of the machine. The construction is such that when either one of the shift keys is depressed a depression of the key 93 will rock the lower end of the locking lever toward the. rear and one of the. toes 82-83, engaging the llLPltSY-il'd lug 80, will hold the key in its depressed position as shown in Figs, 5 and (3. The friction between the toe and the lug. due to the force of the restoring spring 44 or 56, is sullicient to overcome the spring 92; but if the depressed key be struck so as momentarily to relieve this frictional pr ssure, then said spring 92 will restore the locking lever to its normal p0- ii't key to be restored to its normal position.

Various changes can b' madein the lovers ()0 and 47 has where said lever l l l \said part to its extreme positions.

tails of construction and arrangement without departing from my invention.

What I claim as new and desire to secure by Letters Patent, is z- 1. In a typewritin machine, the combi nation with a. shifhile part havingthxeeu printing positions, of two toggles, a lever connecting the free ends of said toggles, means for breaking one of said toggles to shift said part to one of said positions, and means for breaking the other of said toggles to shift said part to the other of sold positions.

2. In a typewritin machine, the combi-- nation with a shifta 1e part having three printing positions, of two separate toggles which when straight hold said part in one position, means for breaking one of said toggles to move said part to a second position, and means for breaking the other of 35 said toggles to move said part to its third position. i

3. In a typewriting machine, the combination with a shiftable part having three printing positions, of two separate toggles which when straight hold said part in one position, means for breaking one of said togglesto move said part to a second position, means for breaking the other of said toggles to move said part to its. third po- 95 sition, and stops for arresting said part in those positions to which it 18 move by breaking said toggles.

4. In a typewritmg machine, the combination with types and a shiftable part having three printing positions, of two separate toggles which when both of them are straight hold said part in a middle position, and means for breaking said toggles to move 1C5 5. In a typewritm machine, the combination with types an'd'a shiftable part having three printing positions, of two separate toggles which when both of them are straight h'old said part in a middle pono sition, means for breaking said toggles to move said part to its extreme positions. and stops for arresting said part in said extreme positions.

5. In a typewritin machine, the commnation with types and a shiftable part having three printing positions, of a lcverconneeted to said part, two toggles connected to said lever and aetiyg when straight to hold said port in one of said positions, means for breaking one of said toggles to shift said part to another of said positions, and means for breaking the other toggle to shift said part to its third position.

7. In atypewriting machine, the combi- 'nation with types and a. shiftable part hat;

ing three printing positions, of two to gles connected with said part.meansi'orbreaking said toggles singly to shift said part to difl del terent positions, and means whereby one of 1 a said toggles acts as a fulcrum for the other I to work against when the said other toggle i is broken.

8. In a typewriting machine, the combination with types and a shiftable part. having three printing positions, of a lever connected with said shiftable part, and two operating means one acting on each end of said lever,

one of said operating means acting as a fulcrum of said lever when the other of said means is actuated.

9. In a typewriting machine, the combination with types and a shiftable part having three printing positions, of a lever connected with said shiftable part, two 0 era-ting means qne abting on each end of said lever, one of crum of said lever when the other means is actuated,

of said two keysfor actuating said operating means, and an interlock be-' spaced wide apart, and stattween said keys;

10. In a typewriting machine, the combination with types and a shiftable part having three printing positions, of two case shift key levers side by side but pivoted on difierent centers, a dug on one of said levers, and an ear on the other of said levers, said lug and ear being so related that when either of said levers is operated said lug and ear block the other of said-levers against operation.

'11. In a typewriting machine, the combi nation with two shift keys, of a shift key lock includin lugs on said keys, and a locking lever having two abutments for cooperatron with said lugs respectively, said lever being built up of' two parts, one of said parts having one of said abutments and the other of said parts having the other of "said abutments and said two parts being independently adjustable.

In a typewriting machine, the combination with two shift keys, of a shi ft-,key lock including'lugs on said keys, a locking lever having two abutments for cooperation with said lugs respectively, said lever being built up of two parts, one of said parts having one of said abutments and the other of said parts having the other of said abutments and said two parts being independently adjustable, and an interlock between said keys.

13. In a typewriting machine, the combination'of two case shift key levers arranged side by side, of a locking lcver between said key levers and comprising a compound lever arm, each element of which carries an abutment for cooperation with one of said key levers and the two elements of sa id compound lever arm being independently adjustableq I 14. In a typewriting machine, the combination with types and a shiftable part havsaid 0 eratin means actin as a fulother of its extreme ing three printing positions, of two separate toggles which when both of them are straight hold said part in a middle position, means for breaking said toggles to move said part to its extreme positions, two stops spaced Wide apart, and cooperating stopping means situated between said two stops, said means cooperating with one of said spaced stops to arrest said part in one of its extreme positions, and cooperating with the other of said parts to arrest said stop in the other of its extreme positions.

15. In a typewriting machine, the combi nation with types and a shiftable part having three printing positions, of two separate toggles which when both of them are straight hold said part in the middle position, means for breaking said toggles to move said part to its extreme positions, two stops movable with said shiftable part and ionary stopping means situated between said spaced stops and cotiperating with one of said spaced stops to arrest said part in one of its extreme positions and cooperating with the other. of said spaced stops to arrest said part in the positions.

16. In a typewriting machine, the combination with a shiftable type bar segment having three printing positions, of a lever of the first order pivoted to said segment, two toggles extending in opposite directions from the ends of said lever, and shift keys for operating said toggles. V

17. In a typewriting machine, the combination with a shiftable having three printing positions, of a lever of the first order pivoted to' said segment, a

toggle extending upward from one end of sai lever, a second toggle extending downward from the other end of said lever, shift keys for operating said toggles, and adjusttype bar segment able stopping devices for arresting said segment when one of said toggles is operated.

18. In a typewritingmachine, the combination with types and a shiftable part, of two operating toggles, both continuously connected with said part, and means for o crating said toggles, .the one independentiy of the other. r

19. The combination of a shiftable segment, a lever connected thereto, two toggles, and two operating keys "connected thereto, the lever fulcruming on one toggle when'one key is operated toggle when the other key is operated.

Signed at Ilion, in the county of Herkimer and State of New York, this 7th day ofJuly A. D. 1913.

EDWVIN EARL BARNEY. Witnesses:

Gno. A. SE13, B. B. HART. 

